Sanitary base for well pumps



Sept. 10, 1940. w. M. SPRENG 2,214,208

SANITARY BASE FOR WELL PUMPS Filed July 21, 1938 3 INVENTOR W. M. SPRENG AT TORNE YS Patented Sept. 10, 1940 UNITED S ATES PATENT'I'O'FFICE Warren M. Spreng, Ashland, Ohio, assignor to The F. E. .Myers & Bro. Company, Ashland,

Ohio, a. corporation of Ohio Application July 21, 1938, Serial No. 220,416

. e Claims. (01. 166-14) My invention relates to a sanitary base 'for well pumps. 1 I

It is the object of my invention to provide a sanitary base for wells to prevent liquid from a pump or surrounding exterior liquids such as wash water in dairies, rain and the like, from getting back into the well and contaminating the water. 1 1

It is an object of this invention to provide a 1 base which can be made perfectly tight so as to protect the wells from contamination and to prevent the spread of disease. This is highly desirable on all wells, but particularly so with respect to public wells and wells used in connection with dairies where contaminated water used in washing milk containers and other utensils might carry disease;

It is my object to provide a sanitary base thatis tightly sealed to the well'platform and to the well pipe. v

It is a further object to provide a tight joint around the pump pipe so as to prevent water from getting down along the pump pipe into the well.

It is an object to provide a base with a bell shape so that the well casing or well pipe can extend up inside the base so as to protect it against the entrance of surface water at the platform.

It is a further object. to provide, if desired, a circular gasket between the base casting and the platform and optionally between the well casing and the bell casing and platform. so as to insurea water tight seal at that point.

Referring to the drawing in detail:

Figure. 1 is a side elevation, partly in section of the well casing, the sanitary base, the pump 'pipe, platform and associated mechanism.

Figure 2 is .a section on the line 2--2'of Figure 3'looking in the direction of the arrows.

Figure 3 is a top plan View with the pump pipe in section of the structure shown in Figure 2.

Figure 4 is a section on line 4-4, looking in the direction of arrows, on Figure 2. This shows the seal between the top of the sanitary base and the pump pipe.

Referring to the drawing in detail, I designates the earth which supports a well platform 2. The well is lined with a well casing or pipe 3 within which is the pump pipe 4 and the sucker rod 5. Mounted upon the'upper end of the pump pipe is the usual discharge line 8 controlled by a valve 1 and having a nozzle 8. The exact details of the pump mechanism are of no importance and are not shown.

Mounted upon the platform 2 is a sanitary base comprising a lateral flange 9 having holes Ill. The ilooltscll v are .used-. for.attaching. this. flange 9 to the well platform 2. There is interposed between this. flange 9 and the top of the well platform 2 adjacent the opening if in the platform a resilient ring or gasket l3 to effectively seal the joint between the flange. 9 and the top of the platform 2. This prevents any external liquids from entering at this point. If desired, the gasket 13 can be extendedinwardly to tightly engage with the surface of the well casing or pipe 3.

This well casing or pipe 3 extends upwardly and terminates-as at M, an appreciable distance above'the top of the platform 2 and within the annular, vertical flange l5 which forms a part of the base of'the sanitary base.

mThis sanitary base extends inwardly and upwardly as at I6 over the top Moi the well casing 3. By arranging this top of well casing 3 as at 14 above the surface of the well platform 2, it prevents surface water from entering into the well casing to contaminate the water in the well.

Returning again to the sanitary base, the upperv portion thereof is formed into a large collar H, the inner edge of which is is brought closely adjacent to the pump pipe 4. This inner edge is tapered as at [8 for the reception of the tapered, resilient gasket I9. The top of this gasket I9 is enclosed by the under side of a plate 20 formed as a part of split collar 2! the halves of which are.

held together by the bolts 22. The collar 2i tightly engages the pipe 4. This collar is drawn down so that the plate 29 is in wedging engagement with the resilient gasket I9. This is eifected by the overhanging and inwardly extending mar.- ginal flanges 23 which extend beneath the enlarged head ll of the sanitary base. Tightening screws 24 are mounted in the overhanging and inwardly extending flanges 23. These screws engage with the under sides of the tapered flange or enlarged head i! of the sanitary base.

Thus a tight seal is formed between the top of the sanitary base and the pump pipe. This place of sealing'is well above any surface water on the platform. The joint so formed is also self-draining and of such a character that it would be difiicultior water to enter between the sanitary base and the pipe. In the first place, passage of water would be through the irregular space between the clamp and the top of the sanitary base and, in the second place, the resilient gasket would prevent any such Water from finally entering between the pipe and the top of,

the sanitary base into the well casing. I

It will be understood that I desire to comprehend within my invention such modifications as come within the scope of the claims and the invention.

Having thus fully described my invention, what I claim is new and desire to secure by Letters Patent is:

1. A well pump comprising in combination a well casing, a pump pipe mounted therein and extending above said casing, a platformlocated below the top of said casing and surrounding said top, a sanitary base adapted detachably toengage said platform and to surround the top of said casing, an inwardly and upwardly directed cover portion of said sanitary base having a flange comprising a sealing means receiving portion surrounding said pump pipe, sealing means arranged in said sealing means receiving portion and adapted tightly to engage the adjacent portion of said pump pipe, a collar surrounding said pump pipe and adapted to engage said sealing means and said flange, and clamping means associated with said collar for simultaneously clamping said sealing means to said pump pipe so as to prevent relative vertical movement between said pump pipe and said base in either direction and sealing the connection between the top of said sanitary base and said pump pipe.

2. In combination, in a sanitary base for a well pump, a well casing, a pump pipe mounted therein and extending above said casing, a platform located below the top of said casing and surrounding said top, a sanitary base adapted to engage said platform and to surround the top of said casing, an inwardly and upwardly directed cover portion of said sanitary base adapted to engage said pump pipe at the top of said base,

ing said top, a sanitary base adapted to engage said platform and to surround the top of said casing, an inwardly and upwardly directed cover portion of said sanitary base adapted to engage said pump pipe at the top of said base, a resilient sealing gasket between the top of said sanitary base and said pump pipe, means for simultane ously clamping said sealing gasket into sealing engagement between said top and said pipe and clamping said pump pipe to said top against relative vertical movement therebetween in either direction, and means for resiliently sealing the engagement of the bottom of said sanitary base with the top of said platform.

4. In combination, a well platform, a well casing extending through and above said platform, a pump pipe within said casing extending above it, a bell-shaped sanitary base mounted on said platform in sealing engagement therewith and extending above said well casing to engagement with said pump pipe whereby the upper end of said well casing is enclosed, and means for resiliently sealing the engagement of the top 'of said bell-shaped sanitary base with said pump pipe comprising a tapered resilient gasket and means clamped to said pipe and said base for forcing said gasket between the top of the base and said pump pipe.

5. In combination, a sanitary base bell-shaped in section and comprising a bottom flange, an inwardly disposed vertical annular flange and an arcuate covering portion terminating at its top in an enlarged pipe-engaging collar having inwardly and outwardly extending flanges, a pump pipe extending through said collar, a well casing extending into the bottom of said base, a resilient sealing gasket between said inwardly extending flange and said pump pipe,-and means engaging with said pump pipe and the said outwardly extending flange for clamping said base and said pump pipe against relative vertical movement and for compressing said gasket into tight sealing engagement between said inwardly extending flange and said pump pipe.

6. In combination, a sanitary base bell-shaped in section comprising a bottom flange, an inwardly disposed vertical annular flange and an arcuate covering portion terminatingat its top in an enlarged pipe engaging collar having inwardly and outwardly extending flanges; a pump pipe extending through such collar; awell casing extending vertically into the bottom of said base; and means engaging with said pump pipe and the outwardly extending flange on the top of said base for clamping the base and pipe to one another, said means comprising similar halves formed into a pipe engaging collar having a gas-" ket engaging flange, a depending flange extending inwardly below said outwardly extending flange on said base and means on said depending flange for-adjustably engaging the outwardly extending flange at the top of said base.

7. In combination, a sanitary base bell-shaped in section comprising a bottom flange, an inwardly disposed vertical annular flange and an arcuate covering portion terminating at its top in an enlarged pipe engaging collar having inwardly and outwardly extending flanges; a pump pipe extending through such collar and a well casing extending into the bottom of said base parallel to the vertical Wall thereof and means engaging with said pump pipe and the outwardly extending flange on the top of said base for clamping the base and pipe to one another, said means comprising similar halves formed into a pipe engaging collar having a gasket engaging flange, and a depending flange extending inwardly below said outwardly extending flange on said base and means on said depending flange for adjustably engaging the outwardly extending flange at the top of said base, a tapered gasket mounted in a tapered recess between the inwardly extending flange at the top of said base and said pump pipe and engaged by said gasket engaging flange.

8. In combination, a well platform, a well casing projecting therethrough, a bell-shaped sanitary base mounted on said platform surrounding the top of said well casing, means for sealing the bottom of said base to the top of said platform, a pump pipe within said well casing extending through said base to a point thereabove, means for resiliently sealing the top of said base to said pump pipe to enclose the top of said casing, and means for simultaneously clamping the top of said base and said pump'pipe against relative vertical movement and compressing said resilientlysealing means so as to form a fluid-tight seal between the top of said base and said pump pipe.

9. In combination, a bell-shaped sanitary base adapted to engage a well platform at its bottom and to receive upwardly into it a well casing, a well casing extending upwardly through a platform into said base, said base-converging inward-' ly and upwardly to a top portion surrounding a pump pipe, said top portion being downwardly inwardly tapered on its surrounding surface, a pump pipe extending upwardly through and above said base, a downwardly converging resilient gasket between the surrounding portion at the top of said base and said pump pipe, and

common means for adjustably clamping the top of said base to said pump pipe and said gasket into tight sealing engagement between said pump pipe and the downwardly inwardly tapered surrounding surface at the top of said base.

WARREN M. SPRENG. 

